Union Reservoir Recreational Master Plan & Trail
This work is planned to implement the Union Reservoir Recreational Master Plan in phases once expansion of the reservoir is implemented, providing a multi-use trail and additional recreational activities at Union Reservoir.
Due to the unknown timeframe for expansion, with approval of the 2012 Master Plan City Council directed staff to explore options for an interim trail that would serve recreational users until the final trail and Master Plan improvements could be implemented post-reservoir expansion. However, the floods in 2013 presented a setback in trail planning, design, and construction. The City is again exploring options for an interim trail that will serve recreational users until the final trail and Master Plan improvements can be implemented.
For general information about Union Reservoir, please visit the Union Reservoir Nature Area webpage.
In 2012, the City adopted the Union Reservoir Recreational Master Plan to provide a vision for existing and future recreational activities at Union Reservoir. The Master Plan was the product of a collaborative effort between City of Longmont staff, consultant staff, key stakeholders, and local residents.
- Union Reservoir Recreational Master Plan Report
- Union Reservoir Overall Plan
- Union Reservoir Southwest Plan
- Union Reservoir East Plan
The Master Plan accounted for the planned future expansion of the reservoir, which remains a long-range water supply option. For additional information about the Union Reservoir enlargement project, please visit the Reservoirs webpage.
The final trail and 2012 Master Plan Improvements are currently unfunded; however, implementation of the Union Reservoir Recreational Master Plan remains a high priority.
The anticipated project schedule for the Union Reservoir interim trail is provided below.
- Design Bid – Upcoming, expected 2025
- Public Process – Upcoming, expected 2025
- Design – Upcoming, expected 2025
- Construction Bid – Upcoming, expected 2025 / 2026
- Construction – Upcoming, expected 2026